I agree, economics, politics and philosophy are all intertwined. I think now that we have a surplus of labor, automation and globalization that we’re due for another shift in all of the above. The loneliness discussed in the OP seems like a symptom of larger societal and technological change.
My theory is that we have a labor surplus because the rules of capitalism were formed when we had a shortage of capital, now that we have basically enough capital, we’re still constraint managing capital, causing underuse of human labor.